#include <iostream>

using std::cout;
using std::endl;

namespace wd
{

extern int val2;

}//end of namespace wd

namespace {
extern int val1;
}


int main()
{
    cout << "wd::val2:" << wd::val2 << endl;
    cout << "::val1: " << ::val1 << endl;

    return 0;
}

